Suppose that $$\vec p, \vec q$$ and $$\vec r$$ are three non-coplanar vectors in $$\mathbb R^3$$. Let the components of a vector $$\vec s$$ along $$\vec p, \vec q$$ and $$\vec r$$ be 4, 3 and 5 respectively. If the components of this vector $$\vec s$$ along $$(-\vec p+\vec q+\vec r),(\vec p- \vec q +\vec r)$$ and $$(-\vec p -\vec q +\vec r)$$ are $$x,y$$ and $$z$$ respectively, then find the value of $$2x+y+z$$.